Metal-polishing machine



Dec. 31, 1929. o, sc n' 1,741,166

METAL POLI SHING MACHINE Filed April 10. 1926 4 Sheets-Sheet l .L: VEu IlIH @250 562222222? o. G. scHMrr'r 1,741,166

HETAL POLISHING MACHINE Filed April 1926 4 Sheqts-Sheet 2 Dec. 31, 1929.

in: VET! U @Zio 9 6622222222 1929. o. G. scHMfi'r 1,741,166

IETAL POLISHING MACHIEHE Filed April 10. 1926 4 Sheets-Sheet 3 E .AliIfE Desi. 31, 1929. o. G. SCHMITT I 3 L V METAL rousfime mcrmw Filed April 10. 1926 4 Spats-Sheet 4 Patented Dec. 31, 1929 STATES PATENT OFFICE OTTO G. SCHMITT, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE SCI-TOLL MFG. CO. INC., OF CHICAGO, ILLINOIS, ACORPORATION OF NEW YORK METAL-POLISHING. MACHINE Application filed April 10,

This invention relates to an improved machine adapted to afford a convenient arrange ment for the polishing of metal strips which when advanced into the machine over a reciparocating table are brought into the field of operation of a butting mechanism. which acts to efficiently polish the entire surface of the strip of metal.

It is an object of this invention to provide 10 an improved metal polishing machine adapted to polish the surface of a strip or band of metal as it is advanced through the machine over a reciprocating table and below a rotatable buffer.

It is also an object of this invention to provide an improved metal polishing machine wherein a reciprocating table is provided with feeding mechanisms for the purpose of advancing a sheet of metal below a buffing 20 mechanism adapted toact transversely of the line of movement of the strip of metal through the machine.

It is an important object of this invention to provide an improved metal polishing ma- 25 chine wherein a rotatable buffing means is adapted to act on a strip of metal as the strip of metal is advanced longitudinally through the machine by feed mechanisms carried on a reciprocating table, the direction of motion 30 of which is transversely to that of the strip of metal through the machine.

Other and further important objects of this invention will be apparent from the disclosures in the specification and the accompanying drawings. i

This invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a fragmentary top plan view of a metal polishing machine and its driving mechanism, embodying the principles of this invention.

Figure 2 is a side elevation of the machine.

Figure 3 is an end elevation of the feeding end of the machine.

Figure 4 is an enlarged fragmentary detail section of the feed mechanism, taken on line 59 IV TV of Figure 1. v 1

1926. Serial No. 101,059.

Figure 5 is an enlarged fragmentary view taken on line V-V of Figure 3.

As shown on the drawings:

The reference numeral 1 indicates a driving motor adapted to operate a shaft 2 on which a driving pulley 3 is rigidly mounted. Connected with the shaft 2 is a gear reduction mechanism 4 adapted to drive a. sprocket 5 at a reduced rate of speed. Trained around the sprocket 5 is an endless chain 6 which is also trained around a sprocket 7 mounted on a shaft8 supported in bearings 9 secured on the rear side of a machine frame 10. The machine frame 10 is supported on pedestals or legs 11. Mounted on the shaft 8 is a control clutch 12 adapted to be operated by a clutch lever 13 to govern the rotation of the shaft from the driving chain 6. Mounted on one end of the shaft Sis a crank disk 14 having a diametric T-slot therein in which a slide block is engaged. Pivotally connected to the slide block is one end of a rod 15, the other end of which is pivotally connected to a slidable table 16 adapted to be reciprocated trans: versely of the machine frame 10. The reciprocating table 16 is provided with a longitudinal slot 17 and with a transverse material feed slot 18. Mounted within the material feed slot 18 is a guide block 19 leaving a space in said transverse slot 18 through which the material is adapted to enter the machine. The material 21 is fed into the machine over a feed bracket or table positioned adjacent the feeding end of the machine as illustrated in Figure 1. The reciprocating table 16. is slidably mounted upon a table 22 which is vertically slidable on a guide block 23 on one of the machine frame supporting legs 11. The supporting table 22 is adapted to be adjusted vertically by means of a hand wheel 24 and a screw 25 for a purpose hereinafter more fully described.

Formed on the top of the reciprocating table 16 are bearing blocks 26 for supporting a pair of parallelupper feed rollers 27, each of which has a gear 28 formed on one end thereof, supported in slidable blocks 29 engaged in the bearings 26. Springs 30 within the bearing members 26 resiliently hold the hearing blocks 29 in position. Positioned beof each of the shafts 33 is a worm wheel 35:

meshing with a worm 36. The two worms 36 are supported on a transverse shaft 37 supported by suitable bearings 38 on the supporting table 22. Securely mounted on the shaft 37 between the two worms 36 is a gear 39 which is in mesh with a driving gear 40 supported on a shaft 41. The shaft 41 is journalled in suitable bearing brackets 42 mounted upon the supporting table 22'.

Connected to the inner end of the shaft 41 by means of a universal joint 43 is one end of a telescoping connecting shaft 44, the other end of which has attached thereto a universal joint 45. The universal joint 45 also connected to one end of a short shaft 46 jour nalled in suitable bearings 47 secured on the rear side of one of the frame supporting legs 11 as clearly shown in Figures 1 and 2. Secured on the outer end of the shaft 46 is a lar e gear 48' adapted to receive a drive from a small gear 49 with which it meshes. The small gear 49 is mounted on the outer end of the shaft 8.

Journallcd in. suitable bearings. 50 on top of the machine frame 10, is a shaft 51 having a pulley wheel 52 secured thereon between the bearings 50. Trained around the driving pulley 3 and around the pulley 52 is. an endless drivi ng belt 53 adapted to. transmit a drive from the motor 1 to the shaft 51. One. end of the shaft 51 projects over the reciprocating table 16 and has a buffing wheel 54 secured thereon and adaptedto rotate in the groove 17 of the reciprocating table 16. The buffer wheel 54 may be of any selected type to efficiently polish the strip of metal 21 as it is fed into the machine over the reciprocating table 16'.

The operation is as follows:

A strip of metal 21 which is to be polished is advanced over the table or bracket20 into the transverse slot 18 of the reciprocating table 16. The guide block 19 serves as a means for holding a strip of metal 21 between one wall of the slot 18 and the end of said block as clearly shown in Figure 1. A strip of material 21 is engaged between the first pair of upper and lower feed rollers 27 and 31 and then passes transversely through the longitudinal table slot 17 between the sec- 0nd pair of feed rollers 27 and 31. l Vhen the motor 1-is running, a drive from the pulley 3 is transmitted by means of the belt 53 to the buffer shaft 51, thereby causing rapid rotation of the buffer wheel 54. The

drive from the motor 1 is also transmitted through the reduction gearing 4 to cause the endless chain 6 to rotate the sprocket 7.

When it is desired to start the polishing operation the operator actuates the control lever 13, thereby throwing in the clt. ch 12 so that the reduced drive from the endless chain 6 is transmitted to the shaft 8 to cause operation of the disk 14 and the small gear or pinion 49. Rotation of the disk 14 causes operation of the rod 15 which being pivotally connected to the table 16 causes same to reciprocate transversely across one end of the machine frame 10 below the revolving buffer wheel 54. The drive from the shaft 8 is transmitted by means of the small wheel 49 to the large gear 48 which in turn causes rotation of the shaft 46 and the telescoping shaft 44. The connecting shaft 44 connects the shafts 41 and 46 by means of the universal couplings or joints 43 and so that the drive from the large gear 48 is transmitted to the shaft 41, thereby causing ro tat'ion of the gear 40. The gear 40 being in mesh with gear 39, rotates said gear and the worm shaft 37, thereby causing the worms 36 to rotate the worm wheels 35 and the shafts 33. Rotation of the shafts. 33 causes rotation of the lower feed rollers 31, the gears 32 of which being in mesh with the ge rs 28 of the upper feed rollers 27 causes rotation of said upper feed rollers. It will thus be seen that the feed rollers are set in operation to cause the strip of material 21 to be ad'vancet transversely across. the reciprocating table 16 as said table is moved back and forth beneath the rotating buffing wheel 54 through the action of the rod orbar 15 which isoperated from the shaft 8 at a reduced rate of speed.

It will thus be noted that the strip of metal material 21 as it is fed transversely across the table 16 through the transverse groove 18 is also, given a movement which is transverse with respect to the machine frame 10. lVith the supporting table 22 raised by means of the hand wheel 24 and the screw 25 to its proper elevation, the reciprocating table over which the material 21 is fed into the machine is brought to the proper elevation so tha-t the strip of material advances th'roughthe field. of operation of the peripheral surface of the rapidly rotating buffer wheel 54. The double movement of the strip of material caused by the reciprocating table acts to: bring all portions of the upper surface of the strip of material 21 into frictional engagement with the rotatable peripheral surface of the buffing wheel 54 which accordingly acts to efficiently polish the upper surface of the sheet of material as it is being automatically fed across the reciprocating table 16 and over the top of the stationary frame work or table lO beneath the bearings 50 and the shaft 51. The

sheet of polished material is thus adapted to be advanced through the machine and. de livered unto suitable receiving means positioned adjacent the discharge end of the ma chine.

I am aware that many changes may be made, and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, otherwise than nocessitated by the prior art.

I claim as my invention:

1. A metal polishing machine comprising a stationary frame worl a supporting table vertically movable thereon, means for adjusting the supporting table, a reciprocating table mounted on said supporting table, feed mechanisms on said reciprocating table for advancing a strip of material to be polished over said reciprocating table, a buffer mechanism supported on said frame work and positioned between said feed mechanisms and above said reciprocating table, and driving mechanisms for operating the bufiing mechanism, the reciprocating table and said material feed mechanisms.

2. A metal polishing machine comprising av frame work, a buffing mechanism mounted thereon, driving means for rotating said bufiing mechanism, a crank disk mechanism supported on said frame work, speed IGdUC'. tion means positioned between said crank disk mechanism and said driving means to cause the crank disk mechanism to be operated at a reduced rate of speed, a clutch for controlling the operation of said crank disk mechanism, an adjustable supporting table on said frame work, means for adjusting the same vertically with respect to said buffing mechanism, a reciprocating table on said sup porting table reciprocated by said crank disk mechanism, material feed mechanisms on said reciprocating table adapted to feed the material axially of said buffing mechanism, and mechanisms for connecting said feed mechanisms with said speed reduction means to cause a strip of material to befed across the reciprocating table as said table is reciprocated to feed the material tangentially with respect to the buffing mechanism to cause polishing of the strip of material by said buiiing mechanism.

3. A metal polishing machine comprising a bulfing mechanism, driving means for opcrating the same, a reciprocating table connected to be operated from said driving means and adapted to feed material tangentially of the buffing mechanism, an adjustable support for said reciprocating table, means for adjusting said support vertically to adjust said reciprocating table with respect to said buffing mechanism, and a material feed device on said reciprocating table operated from said driving means to cause a strip of material to be advanced axially with respect to said bufling mechanism.

4. A metal polishing machine comprising a buffing mechanism, means for operating the same, a reciprocating table connected to be operated by said driving means, a pair of rotatable stationary shafts beneath said table, and feed mechanisms on said reciproeating table slidable on said shafts and connected to be operated by said driving means to cause a strip of material to be moved both transversely and longitudinally of the bufling surface of said buffing mechanism to cause polishing of the strip of material.

5. In a metal polishing machine, the com bination with a rotatable buffing wheel, of a reciprocating table mounted therebelow, a pair of parallel shafts, material feed rollers on said table and slidably engaged on said shafts, and means for operating said buiiing wheel, said reciprocating table, said shafts and said feed rollers, to cause a strip of mate rial to be advanced transversely over the re ciprocating table as the material is reciprocated beneath said buffing wheel by the action of said reciprocating table.

6. A metal polishing machine comprising a frame work, a bufling wheel rotatably supported thereon, a driving device, means connecting said driving device with said bufiing wheel to cause rotation of the buffing wheel at a higher rate of speed, a shaft, speed reduction means positioned between said shaft and said driving device to cause rotation of the shaft at a reduced rate of speed, a clutch mechanism on said shaft for governing the operation thereof, a reciprocating table beneath said. bufiing wheel, eccentric means connecting said shaft with said reciprocating table, upper and lower material feed rollers mounted on said reciprocating table for advancing a strip of material to be polished transversely of the table, a pair of parallel shafts beneath said reciprocating table affording supports for the sliding movement of said lower rollers, means for rotating said shafts to cause rotation of said lower rollers, and universal connections between said operating means and said first mentioned shaft.

7 In a metal polishing machine, the combination with a bufling mechanism, of slidable roller means for advancing a strip of material axially with respect to the bufiing mechanism, and a vertically adjustable support for said means adapted to reciprocate said means and feed said strip of material tangentially with respect to the bufling mechanism.

In testimony whereof I have hereunto subscribed my name.

OTTO G. SCHMITT. 

